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feat(lambda-at-edge): add bundledLambdas option for bundling them wit…
…h esbuild
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| import { Runtime as LambdaRuntime } from "@aws-cdk/aws-lambda/lib/runtime"; | ||
| import readDirectoryFiles from "@sls-next/core/dist/build/lib/readDirectoryFiles"; | ||
| import type { ServerlessComponentInputs } from "@sls-next/serverless-component/types"; | ||
| import { build } from "esbuild"; | ||
| import glob from "fast-glob"; | ||
| import fse from "fs-extra"; | ||
| import path from "path"; | ||
|
|
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| const TARGET_FILE = "bundle.js"; | ||
|
|
||
| type Runtime = NonNullable<ServerlessComponentInputs["runtime"]>; | ||
|
|
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| const getTarget = (input?: string): string => { | ||
| switch (input) { | ||
| case LambdaRuntime.NODEJS_14_X.name: | ||
| return "node14"; | ||
| case LambdaRuntime.NODEJS_10_X.name: | ||
| return "node10"; | ||
| case LambdaRuntime.NODEJS_12_X.name: | ||
| default: | ||
| return "node12"; | ||
| } | ||
| }; | ||
|
|
||
| export const bundleLambda = async ( | ||
| outputDir: string, | ||
| handler: string, | ||
| runtime: Runtime | null | ||
| ) => { | ||
| const target = path.join(outputDir, handler); | ||
| const index = path.join(target, "index.js"); | ||
| const outfile = path.join(target, TARGET_FILE); | ||
|
|
||
| const pathExists = await fse.pathExists(index); | ||
| if (!pathExists) { | ||
| throw `Failed to bundle \`${handler}\`, file \`${index}\` not found...`; | ||
| } | ||
|
|
||
| try { | ||
| await build({ | ||
| bundle: true, | ||
| entryPoints: [index], | ||
| external: ["sharp"], | ||
| format: "cjs", | ||
| legalComments: "none" /** Handler code is not distributed */, | ||
| minify: true, | ||
| outfile, | ||
| platform: "node", | ||
| target: getTarget( | ||
| runtime | ||
| ? typeof runtime === "string" | ||
| ? runtime | ||
| : runtime[handler as keyof typeof runtime] | ||
| : undefined | ||
| ) | ||
| }); | ||
| } catch (error) { | ||
| throw `Esbuild failed to bundle \`${handler}\`.`; | ||
| } | ||
|
|
||
| const outputFiles = await readDirectoryFiles(target, [ | ||
| outfile, | ||
| "**/BUILD_ID" | ||
| ]); | ||
|
|
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| // Remove all output files after bundling | ||
| await Promise.all( | ||
| Array.from(new Set(outputFiles)).map((file) => fse.remove(file.path)) | ||
| ); | ||
|
|
||
| const emptyDirectories = await readDirectoryFiles( | ||
| target, | ||
| [outfile, "**/BUILD_ID"], | ||
| false | ||
| ); | ||
|
|
||
| // Remove all empty leftover directories | ||
| await Promise.all( | ||
| emptyDirectories.map((dir) => | ||
| fse | ||
| .remove(dir.path) | ||
| // eslint-disable-next-line @typescript-eslint/no-empty-function | ||
| .catch(() => {}) | ||
| ) | ||
| ); | ||
| }; |
53 changes: 53 additions & 0 deletions
53
...ages/libs/lambda-at-edge/tests/integration/with-empty-next-config/bundled-lambdas.test.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| import { remove, pathExists } from "fs-extra"; | ||
| import path from "path"; | ||
| import { getNextBinary } from "../../test-utils"; | ||
| import os from "os"; | ||
| import Builder from "../../../src/build"; | ||
|
|
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| jest.unmock("execa"); | ||
|
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| describe("Next.js 12 bundled lambdas", () => { | ||
| const nextBinary = getNextBinary(); | ||
| const fixtureDir = path.join(__dirname, "./fixture"); | ||
| let outputDir: string; | ||
|
|
||
| beforeAll(async () => { | ||
| outputDir = path.join( | ||
| os.tmpdir(), | ||
| new Date().getUTCMilliseconds().toString(), | ||
| "slsnext-test-build" | ||
| ); | ||
|
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| console.log("outputDir:", outputDir); | ||
|
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| const builder = new Builder(fixtureDir, outputDir, { | ||
| cwd: fixtureDir, | ||
| cmd: nextBinary, | ||
| args: ["build"], | ||
| bundledLambdas: true | ||
| }); | ||
|
|
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| await builder.build(); | ||
| }); | ||
|
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| afterAll(() => { | ||
| return Promise.all( | ||
| [".next"].map((file) => remove(path.join(fixtureDir, file))) | ||
| ); | ||
| }); | ||
|
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| it("does not copy node_modules to default lambda artefact", async () => { | ||
| const exists = await pathExists( | ||
| path.join(outputDir, "default-lambda/node_modules") | ||
| ); | ||
| expect(exists).toBe(false); | ||
| }); | ||
|
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| it("copies bundle.js to default lambda artefact", async () => { | ||
| const exists = await pathExists( | ||
| path.join(outputDir, "default-lambda/bundle.js") | ||
| ); | ||
|
|
||
| expect(exists).toBe(true); | ||
| }); | ||
| }); |
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